How to show multiple curves in one xy graph.

[zychocolate]

I can get the temprature ,humidity and co2 data from sensors.Now l want to show them in one xy graph, and the x-axis shows the absolut time. I already set different y-axis, and tried many ways, but still can't get three curves.

[kahlenberg]

Right clikc on graph->Properties-> In Appearance Tab there is "Plots shown" option increment it to 3.

[zychocolate]

l set already,but it cannot work.(It still just display one curve)

[altenbach]

The numer of x points needs to be the same as the number of y points.

Each plot needs to be an array, currently you only have a single plot with 3 points.

Your property nodes are not necessary.

What determines the loop rate?

Please attach your VI instead of a picture. We cannot tell how the express Vi is configured. (e.g. is it set to retain data? You would probably run out of memory pretty quickly.)

If the timing (=loop rate) is regular, you might be better off with a chart instead.

[zychocolate]

This is my vi.

[altenbach]

So far you did not answer any of my question in my earlier post. Why not?

[saad1964]

control of 3 plot